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Table 2 Pre and post descriptive statistics by question for each domain

From: Evaluating the impact of a polypharmacy Action Learning Sets tool on healthcare practitioners’ confidence, perceptions and experiences of stopping inappropriate medicines

Domain

Questions

Pre

Post

Wilcoxon Signed Rank

mean (SD)

median (IQR)

mean (SD); median (IQR)

mean (SD)

median (IQR)

mean (SD); median (IQR)

Z score

p value*

effect size (r)

Perceptions around stopping medicines

Q1

3.63 (0.87)

4.00 (3.00–4.00)

4.16 (0.53); 4.25 (3.81–4.50)

4.09 (0.53)

4.00 (4.00–4.00)

4.44 (0.37); 4.25 (4.25–4.75)

-2.696

0.008

0.34

Q2

4.66 (0.60)

5.00 (4.00–5.00)

4.88 (0.42)

5.00 (5.00–5.00)

-1.941

0.092

0.24

Q3

4.22 (0.61)

4.00 (4.00–5.00)

4.41 (0.50)

4.00 (4.00–5.00)

-1.604

0.180

0.20

Q4

4.16 (0.68)

4.00 (4.00–5.00)

4.38 (0.55)

4.00 (4.00–5.00)

-1.941

0.092

0.24

Knowledge and information sources

Q5

3.56 (0.80)

4.00 (3.00–4.00)

3.72 (0.47); 3.86 (3.36–4.11)

4.03 (0.75)

4.00 (4.00–5.00)

4.06 (0.40); 4.00 (3.75–4.43)

-2.982

0.003

0.38

Q6

3.22 (0.66)

3.00 (3.00–4.00)

4.03 (0.60)

4.00 (4.00–4.00)

-4.025

0.000

0.51

Q7

3.75 (0.92)

4.00 (3.25–4.00)

4.19 (0.54)

4.00 (4.00–4.75)

-2.401

0.016

0.30

Q8

3.94 (0.91)

4.00 (4.00–4.75)

4.35 (0.61)

4.00 (4.00–5.00)

-2.162

0.030

0.27

Q9

4.72 (0.80)

5.00 (5.00–5.00)

4.28 (0.77)

4.00 (4.00–5.00)

-2.566

0.012

0.34

Q10

3.31 (0.78)

3.50 (3.00–4.00)

3.91 (0.59)

4.00 (4.00–4.00)

-3.189

0.001

0.40

Q11

3.63 (0.83)

4.00 (3.00–4.00)

3.66 (0.87)

4.00 (3.00–4.00)

-0.243

1.000

0.03

Perceptions of patients and stopping medicines

Q12

3.47 (0.76)

3.50 (3.00–4.00)

3.54 (0.61); 3.58 (3.00–4.00)

3.97 (0.59)

4.00 (4.00–4.00)

4.04 (0.51); 4.00 (3.67–4.33)

-3.258

0.001

0.41

Q13

3.56 (0.76)

4.00 (3.00–4.00)

4.13 (0.66)

4.00 (4.00–5.00)

-3.499

 < 0.001

0.44

Q14

3.58 (0.72)

4.00 (3.00–4.00)

4.03 (0.59)

4.00 (4.00–4.00)

-2.977

0.003

0.38

Perception of colleagues and stopping medicines

Q15

3.81 (0.54)

4.00 (4.00–4.00)

3.59 (0.29); 3.67 (3.36–3.77)

4.13 (0.49)

4.00 (4.00–4.00)

3.90 (0.46); 3.89 (3.58–4.11)

-1.955

0.063

0.24

Q16

3.84 (0.45)

4.00 (4.00–4.00)

4.06 (0.72)

4.00 (4.00–4.75)

-1.334

0.241

0.17

Q17

3.88 (0.61)

4.00 (3.25–4.00)

4.19 (0.54)

4.00 (4.00–4.75)

-2.106

0.051

0.26

Q18

4.00 (0.37)

4.00 (4.00–4.00)

4.38 (0.61)

4.00 (4.00–5.00)

-2.668

0.011

0.34

Q19

3.44 (0.62)

3.50 (3.00–4.00)

3.78 (0.61)

4.00 (3.00–4.00)

-2.294

0.034

0.29

Q20

3.91 (0.39)

4.00 (4.00–4.00)

4.16 (0.69)

4.00 (4.00–5.00)

-1.789

0.116

0.23

Q21

3.56 (0.56)

4.00 (3.00–4.00)

3.84 (0.72)

4.00 (3.00–4.00)

-1.8

0.108

0.23

Q22

2.38 (0.94)

2.00 (2.00–3.00)

2.78 (1.34)

2.50 (2.00–4.00)

-1.796

0.070

0.22

Q23

3.50 (0.92)

3.00 (3.00–4.00)

3.78 (0.91)

4.00 (3.00–4.00)

-1.416

0.180

0.18

Institutional factors

Q24

3.47 (0.84)

4.00 (3.00–4.00)

2.89 (0.60); 3.00 (2.40–3.40)

3.88 (0.79)

4.00 (3.00–4.75)

3.01 (0.79); 2.90 (2.20–3.70)

-2.166

0.038

0.27

Q25

2.28 (1.11)

2.00 (1.00–3.00)

2.47 (1.44)

2.00 (1.00–4.00)

-1.292

0.227

0.16

Q26

2.19 (1.12)

2.00 (1.00–3.00)

1.78 (0.87)

2.00 (1.00–2.00)

-2.207

0.035

0.28

Q27

3.03 (0.82)

3.00 (2.25–4.00)

2.91 (1.33)

3.00 (2.00–4.00)

-0.608

0.552

0.08

Q28

3.47 (0.62)

4.00 (3.00–4.00)

4.00 (0.80)

4.00 (4.00–4.75)

-3.532

 < 0.001

0.44

  1. *The probability p < 0.05 indicates that the difference is statistically significant